Discovery of acylguanidine oseltamivir carboxylate derivatives as potent neuraminidase inhibitors
作者:Zhaoliang Li、Yanchun Meng、Shengtao Xu、Wang Shen、Zhaoqing Meng、Zhenzhong Wang、Gang Ding、Wenzhe Huang、Wei Xiao、Jinyi Xu
DOI:10.1016/j.bmc.2017.03.052
日期:2017.5
carboxylate analogues were synthesized and evaluated against influenza viruses (H1N1 and H3N2) in vitro. The representative compounds with strong inhibitory activities (IC50 <40nM) against neuraminidase (NA) were further tested against the NA from oseltamivir-resistant strain (H259Y). Among them, compounds 9 and 17 were potent NA inhibitors that exhibited a 5 and 11-fold increase in activity comparing
为了寻找具有更高效力的新型抗流感药,合成了一系列酰基胍基奥司他韦羧酸酯类似物,并在体外对流感病毒(H1N1和H3N2)进行了评估。进一步测试了对神经氨酸酶(NA)具有强抑制活性(IC50 <40nM)的代表性化合物对耐奥司他韦菌株(H259Y)产生的NA的耐受性。其中,化合物9和17是有效的NA抑制剂,与针对H259Y突变体的奥司他韦羧酸酯(2,OC)相比,其活性分别提高了5倍和11倍。此外,针对流感病毒H259Y突变体(H1N1)复制和细胞毒性试验的效果表明,化合物9和17的亲和力比母体化合物2分别提高了20倍和6倍,并且在体外没有明显的细胞毒性。而且,分子对接研究表明,化合物9和17与奥司他韦的对接方式不同,在这种情况下形成了新的氢键和疏水性相互作用。这项工作为发现野生型和耐奥司他韦菌株的NAs的有效抑制剂提供了独特的见识。